ATTEN ST-965 lead-free Soldering Station Adjustable Temperature ST-965 Soldering station : Temperature locking,temperature calibration and temperature alarming function Password protecting function and temperature unite switching function Buttons(1,2,3) for pre-setting or switching frequently used temperature New design with LCD display screen making control visualization Automatic standby ,shutdown with smart time setting MCU controlled temperature calibration Beep alarm function available Security sticker Copper transformer Pluggable heater SMT Process Define button : decrease value That shortly press button change value slowly, long press button change value rapidly Long press both key at the same time to enter into menu mode Key means save or confirm 3 groups of preset key Key is 3 groups of preset key Set preset value by long pressing key